Mauremys japonica

Japanese pond turtle

Maximum lifespan

16.2 yr

AnAge record

mtDNA size

16,443 bp

RefSeq NC_016951.1

GC content

39.52%

Whole genome

Non-coding

966 bp

D-loop 914 bp

Where Japanese pond turtle sits among 2,335 species

Whole-genome GC content against maximum lifespan. Japanese pond turtle has the 1,144th longest lifespan of them.

This species
Other reptiles
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,443 bp

GC skew (G − C) / (G + C): −0.341
AT skew (A − T) / (A + T): +0.125

Life history

Maximum lifespan: 16.2 years
Adult weight: 494.2 g

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 03729)

About this record

Lifespan source: AnAge build 15
Based on: an animal in captivity
Data quality: acceptable, small sample
Licence: Free to use, subject to the Human Ageing Genomic Resources conditions of use
Status: Updated in build 2
In the database since: build 1 (2015-07-01)
Last changed: build 2 (2026-11-13)

Every change against the 2015 build is in the changelog download.

Composition by region

Reference (L) strand as deposited in RefSeq

Whole genome16,443 bp

Protein-coding11,362 bp

12S rRNA971 bp

16S rRNA1,599 bp

All tRNA1,554 bp

D-loop914 bp

Genes and regions

Select a column to sort; select a gene to compare it across species

Base composition of Mauremys japonica genes

ND1NADH dehydrogenase subunit 1	971 bp	32.7%	28.1%	11.0%	28.1%	39.14%	−0.437	+0.076
ND2NADH dehydrogenase subunit 2	1,039 bp	36.3%	24.4%	9.9%	29.4%	39.27%	−0.495	+0.195
COX1Cytochrome c oxidase subunit I	1,548 bp	28.6%	30.3%	16.9%	24.2%	41.09%	−0.179	−0.029
COX2Cytochrome c oxidase subunit II	690 bp	35.5%	26.4%	12.5%	25.7%	38.12%	−0.346	+0.148
ATP8ATP synthase F0 subunit 8	168 bp	39.3%	24.4%	6.5%	29.8%	36.31%	−0.639	+0.234
ATP6ATP synthase F0 subunit 6	684 bp	34.6%	26.3%	9.6%	29.4%	39.04%	−0.506	+0.137
COX3Cytochrome c oxidase subunit III	784 bp	30.7%	27.7%	15.1%	26.5%	41.58%	−0.276	+0.052
ND3NADH dehydrogenase subunit 3	349 bp	31.2%	30.7%	11.5%	26.6%	38.11%	−0.399	+0.009
ND4LNADH dehydrogenase subunit 4L	300 bp	28.7%	32.0%	10.7%	28.7%	39.33%	−0.458	−0.055
ND4NADH dehydrogenase subunit 4	1,377 bp	33.3%	27.0%	12.1%	27.7%	39.72%	−0.393	+0.104
ND5NADH dehydrogenase subunit 5	1,806 bp	34.2%	26.8%	9.9%	29.1%	38.98%	−0.491	+0.122
ND6NADH dehydrogenase subunit 6	525 bp	44.6%	16.4%	9.1%	29.9%	39.05%	−0.532	+0.463
CYTBCytochrome b	1,144 bp	30.2%	26.2%	11.9%	31.7%	43.62%	−0.455	+0.070
12S rRNA12S ribosomal RNA	971 bp	37.0%	22.5%	16.7%	23.9%	40.58%	−0.178	+0.244
16S rRNA16S ribosomal RNA	1,599 bp	38.5%	21.4%	16.7%	23.4%	40.09%	−0.167	+0.286
D-loopControl region (D-loop)	914 bp	32.4%	33.8%	13.0%	20.8%	33.81%	−0.230	−0.021

Codon usage

Counts per codon, darker is more frequent

Gene

3,793 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.0%

UUU92

UUC135

Leu L16.1%

UUA166

UUG22

CUU68

CUC80

CUA249

CUG25

Ile I8.5%

AUU148

AUC174

Met M6.6%

AUA218

AUG31

Val V3.9%

GUU27

GUC23

GUA80

GUG17

Ser S6.7%

UCU45

UCC55

UCA109

UCG3

AGU11

AGC32

Pro P5.6%

CCU23

CCC46

CCA136

CCG8

Thr T9.3%

ACU64

ACC134

ACA149

ACG4

Ala A6.8%

GCU58

GCC103

GCA87

GCG9

Tyr Y3.2%

UAU50

UAC70

His H2.7%

CAU42

CAC61

Gln Q2.7%

CAA99

CAG3

Asn N3.7%

AAU40

AAC101

Lys K2.3%

AAA84

AAG4

Asp D1.8%

GAU28

GAC39

Glu E2.5%

GAA84

GAG10

Cys C0.8%

UGU11

UGC21

Trp W2.9%

UGA98

UGG12

Arg R1.9%

CGU12

CGC8

CGA47

CGG4

Gly G6.0%

GGU35

GGC59

GGA99

GGG33

Stop 0.2%

UAA6

UAG0

AGA0

AGG2

Genome map

38 annotated features in NC_016951.1

Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.

Protein-coding13
rRNA2
tRNA22
D-loop1

Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
Middle ring: GC% of each gene against the whole genome (39.5%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Mauremys japonica (NC_016951.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	70	70 bp	+	–
12S rRNA	Ribosomal RNA	71	1,041	971 bp	+	40.6%
tRNA-Val	Transfer RNA	1,042	1,111	70 bp	+	–
16S rRNA	Ribosomal RNA	1,112	2,710	1,599 bp	+	40.1%
tRNA-Leu (UUR)	Transfer RNA	2,711	2,786	76 bp	+	–
ND1	Protein-coding gene	2,787	3,757	971 bp	+	39.1%
tRNA-Ile	Transfer RNA	3,758	3,827	70 bp	+	–
tRNA-Gln	Transfer RNA	3,827	3,897	71 bp	−	–
tRNA-Met	Transfer RNA	3,897	3,965	69 bp	+	–
ND2	Protein-coding gene	3,966	5,004	1,039 bp	+	39.3%
tRNA-Trp	Transfer RNA	5,005	5,082	78 bp	+	–
tRNA-Ala	Transfer RNA	5,084	5,152	69 bp	−	–
tRNA-Asn	Transfer RNA	5,154	5,226	73 bp	−	–
tRNA-Cys	Transfer RNA	5,254	5,322	69 bp	−	–
tRNA-Tyr	Transfer RNA	5,323	5,393	71 bp	−	–
COX1	Protein-coding gene	5,395	6,942	1,548 bp	+	41.1%
tRNA-Ser (UCN)	Transfer RNA	6,934	7,004	71 bp	−	–
tRNA-Asp	Transfer RNA	7,007	7,076	70 bp	+	–
COX2	Protein-coding gene	7,077	7,766	690 bp	+	38.1%
tRNA-Lys	Transfer RNA	7,768	7,840	73 bp	+	–
ATP8	Protein-coding gene	7,842	8,009	168 bp	+	36.3%
ATP6	Protein-coding gene	8,000	8,683	684 bp	+	39.0%
COX3	Protein-coding gene	8,683	9,466	784 bp	+	41.6%
tRNA-Gly	Transfer RNA	9,467	9,534	68 bp	+	–
ND3	Protein-coding gene	9,535	9,884	350 bp	+	38.1%
tRNA-Arg	Transfer RNA	9,885	9,954	70 bp	+	–
ND4L	Protein-coding gene	9,955	10,254	300 bp	+	39.3%
ND4	Protein-coding gene	10,248	11,624	1,377 bp	+	39.7%
tRNA-His	Transfer RNA	11,637	11,706	70 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,707	11,773	67 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,773	11,844	72 bp	+	–
ND5	Protein-coding gene	11,845	13,650	1,806 bp	+	39.0%
ND6	Protein-coding gene	13,646	14,170	525 bp	−	39.1%
tRNA-Glu	Transfer RNA	14,171	14,238	68 bp	−	–
CYTB	Protein-coding gene	14,243	15,386	1,144 bp	+	43.6%
tRNA-Thr	Transfer RNA	15,387	15,459	73 bp	+	–
tRNA-Pro	Transfer RNA	15,461	15,529	69 bp	−	–
D-loop	Control region	15,530	16,443	914 bp	–	33.8%